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Effect of Coulomb correlation on hopping conductivity

  • Semiconductors and Dielectrics
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Abstract

The analysis of hopping conductivity requires a complete quantum-statistical description of a pair of sites between which an electron jump takes place. This description includes a double-charged energy level, the energy being increased by the Coulomb repulsion of the charges. The inclusion of this level changes the occupation numbers of single-charge states essential for hopping conductivity. Such an indirect influence of Coulomb repulsion is referred to as Coulomb correlation. It leads to a modification of Mott’s law in the case of conductivity with variable range hopping. The concept of a Coulomb gap is not required for the characterization of this modification.

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Authors and Affiliations

  1. Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia

    V. D. Kagan

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  1. V. D. Kagan
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Translated from Fizika Tverdogo Tela, Vol. 42, No. 5, 2000, pp. 805–808.

Original Russian Text Copyright © 2000 by Kagan.

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Kagan, V.D. Effect of Coulomb correlation on hopping conductivity. Phys. Solid State 42, 824–828 (2000). https://doi.org/10.1134/1.1131296

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  • DOI: https://doi.org/10.1134/1.1131296

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